Filestar*
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Convert fax to sun

  1. Download and install the latest version of Filestar.

  2. Right click on one or more Fax file(s) on your desktop and select Convert with Filestar.

  3. Type convert to sun in the search box.

  4. Press Convert.

  5. Or let an AI agent do it: filestarcli -i file.fax -c "convert to sun" (how).

Let your AI agent convert FAX to SUN

Claude Code, Codex, Cursor and other agents can do this on your computer with Filestar. Your files stay on your machine.

Install Filestar and add it to your agents:

npm install -g filestar
filestarcli agent install

Or add it in one click:

Claude Code:

claude mcp add filestar -- npx -y [email protected] mcp

Then ask your agent:

“Convert the FAX files in my Downloads folder to SUN”

Or run it yourself:

filestarcli -i file.fax -c "convert to sun"

Runs on your computer, so your files stay on it. Works on Windows, macOS and Linux. 50 free conversions with the npm install, no account needed.

Can my AI agent convert FAX to SUN?

Yes. Install the Filestar CLI with npm install -g filestar and your agent can run filestarcli -i file.fax -c "convert to sun" on your computer, so your files stay on it.

Using Filestar With AI Agents → · Download SKILL.md

What is the difference between .fax and .sun?

Name
Group 3 FAX
Sun Raster Graphic File
Extension
.fax
.sun
Format
Binary
Binary
Category
Fax
Raster Image
Developer
ITU-T
Sun Microsystems
Description
This format is used to compress TIFF images when sending them via fax machines. This format helps reduce the data transmission time. Group 3 eliminates redundant data during compression in order to reduce file size. The standard 10:1 compression ratio may be increased to the user's preferences, but it can lead to a significant loss of image quality.
Bitmap image generated by a Sun Microsystems workstation; native graphic format used by the Sun Unix operating system; uses a standard image format that can be read by several graphics programs.
MIME Type
application/vnd.fax
image/x-sun-raster
Sample
sample.sun
Wikipedia
.sun on Wikipedia

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